[data-plane]: Bump jackson-bom from 2.12.0 to 2.12.1 in /data-plane (#528)
[data-plane]: Bump jackson-bom from 2.12.0 to 2.12.1 in /data-plane (#528)

Bumps [jackson-bom](https://github.com/FasterXML/jackson-bom) from 2.12.0 to 2.12.1.
- [Release notes](https://github.com/FasterXML/jackson-bom/releases)
- [Commits](https://github.com/FasterXML/jackson-bom/compare/jackson-bom-2.12.0...jackson-bom-2.12.1)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
knative-sandbox/eventing-kafka-broker,knative-sandbox/eventing-kafka-broker,knative-sandbox/eventing-kafka-broker